would be the 1st one closet to the radiator
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On a straight ( inline ) 6 cylinder , the Ford V6 with rear wheel drive / 4X4 is :
firewall
3 - 6
2 - 5
1 - 4
front
cylinder # 1 is the front cylinder on your straight 6
The # 1 cylinder for the 4.9 L ( 300 cubic inch ) straight 6 cylinder Ford is the cylinder at the front of the vehicle
# 1 cylinder is the front cylinder on a Ford straight 6 cylinder engine
firewall 3 - 6 2 - 5 1 - 4 front
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front ( Ford V8 engine ) also , for the straight 6 cylinder engine , the # 1 cylinder is at the front
For your Ford 4.9 liter / 300 cubic inch inline six cylinder engine : ( the # 1 cylinder is at the FRONT of the vehicle )
# 1 cylinder is at the front by the radiator on the Ford 300 cubic inch straight 6 cylinder
Closest to the front of the vehicle
firewall 3 - 6 2 - 5 1 - 4 front ( for the 4.2 L - V6 - in a 1997 Ford F-150 )
1-----2-----3 4-----5-----6 front of Ford Taurus
1----2----3 4----5----6 ---front---
inline 6 cylinder - front engine cylinder ---------------------------------------------------------------- Ford V8 - passenger side of engine , front cylinder FIREWALL 4 - 8 3 - 7 2 - 6 1 - 5 FRONT